From the laudation:

“In recognition of his outstanding scientific contributions to crystallography, the Abraham Gottlob Werner Silver Medal was awarded to Theo Hahn of Aachen.

Theo Hahn is one of the most prominent contemporary German crystallographers. (...) Between 1957 and 1960, he was among the pioneers in Germany in applying large-scale electronic computers to crystal structure research. (...) Following his appointment to the Technical University of Aachen, he founded what has since become the internationally renowned Institute of Crystallography. (...) One of Theo Hahn's most outstanding achievements was his editorship of Volume A of the new International Tables for Crystallography. As Chairman of the Editorial Committee of the International Union of Crystallography (IUCr), he and his team of contributors rendered an invaluable service to crystallographers around the world.”